Cane-crushing apparatus



3 Sheets-Sheet 1.

(No Model.)

A. PESANT. CANE ORUSHING APPARATUS.

Patented Mar. MW

A/ dr /I l M WITNESSES:

INVENTOH WWW fih ATTORNEY (No Model.) 3 Sheets-Sheet 2.

A. PESANT.

CANE GRUSHING APPARATUS. No. 600,823. I Patented Mar. 15; 1898.

WITNESSES: INVENTOR 1% W ATTORNEY 3 Sheets-Sheet 3,

(No Model.)

A. PESANT. CANE GRUS HING APPARATUS.

Patented Mar. 15, 1898.

Uwrrnn STATES ALFONSO PESANT, OF BROOKLYN, NEW YORK.

CANE-CRUSHING APPARATUS.

SPECIFICATION formingpart of Letters Patent No. 600,823, dated-March 15, 1898. Application filed April 24, 1897. erial No, 638,690. (No model.)

To all whom it may concern.-

Be it known that I, ALFoNso PESANT, of the city of Brooklyn, county of Kings, and State of New York, have invented new and useful Improvements in Cane-Crushing Apparatus, of which the following is a specification.

The present invention relates to a machine for crushing cane, and has for its object to provide a machine for said purpose which shall operate in a more efficient manner than those heretofore used.

1n the drawings I have illustrated a ma chine embodying my invention, in which Figure l is a plan View. Fig. 2 is the longitudinal section along line 2 2 of Fig. 1.

Fig. 3 is a detail longitudinal view of one of the cutting-rolls, partlyin section. Fig. 4 is a detail view in elevation of one end of the roll, showing a modified means of securing the roll. Fig. 5 is a section along line 5 5 of Fig. 4, certain parts being shown in full. Fig. 6 is a sectional View of portions of two contiguous collars going to make up the rolls. Fig. 7 is a plan View of the tension devices, partly in section and partly broken away; and Fig. 8 is an enlarged view of the teeth of the rolls.

Likeletters and figures of reference refer tolike parts throughout the several views of the drawings.

Referring to said drawings in detail, 1 represents the bed-plate of the machine, which is mounted upon a suitable base 2. Upon this bed-plate are standards 3, supporting a roll over which passes a traveling apron 5, de-

signed to carry the cane to be crushed to the delivering-chute 6,down which the cane passes by gravity to the crushing-rolls, which comprise an upper roll 7 and a lower roll 8. The

lower rollis stationarily j ournaled in pedestals 9, secured to the base-plate. The upper roll 7 is journaled in sliding blocks in the pedestals 9, so as to have a sliding movement relatively to the lower. roll. I Over the sliding journal-boxes of the roll 7 are cap-pieces 10, through which pass bolts 11, which project downwardly past the lower roll and through the bed-plate into a recessed portion 12 in the bed of the machine.

The bolts 11 and cap-pieces 10 are for the purpose, in conjunction with devices to be hereinafter described, of permitting a relative movement of the upper roll 7 to compensate for extraordinary strain thereon, which through which pass the bolts 11, the heads of which are below the plate 14:. Intermediate of the plates 13 and 14 are a series of spiral springs 16, mounted on stems 17, which consist of bolts whose heads 18 are countersunk in the plate 14, the lower end of said bolts passing through the plate 15 and being provided with nuts 19 for adjusting the tension of the springs.

The rolls 7 and 8 each consist of a shaft 20, provided with a series of feathers 21, and a shouldered portion 22, which may be made either integral with the shaft or consist of an annular ring shrunk thereon. The crushingsurface of the rolls is made up of a series of collars 23, each having at one side an annular groove or rabbet 24 and on the other side an annular tongue 25, adapted to engage the rabbet or groove of a contiguous collar. The tongue or projection is made slightly larger than the groove of the contiguous collar withv in which it is adapted to be seated and is forced into place in said groove by hydraulic pressure, so that an absolutely tight fit of the contiguous collars is produced, which preeludes the percolation of juices between the collars to the shaft upon which they are mounted. It will be understood that each of the collars is provided with a suitable groove for engaging the feathers on the roll-shaft. The rolls are built up as described-that is, by placing the series of collars upon the shaft so as to engage with the feathers, driving them successivelyinto engagement with each other by hydraulic power until the full number-of collars to complete a roll is placed in position, the last one of the series being secured in position by a ring 26, shrunk on the shaft, and threaded bolts 27, passing through said ring and screwed into tapped holes in the shaft. Each of the collars going to make up the cutting-rolls is provided with a series of cutting-teeth oppositely obliquely arranged on each ring, so as to form a series of VS Whose apices are along the central circumferential line of each ring, the VS of one ring registering with those of contiguous rings, so as to form a series of zigzag teeth extending from end to end of the composite roll. Each of the teeth of the cutting or breaking rolls is made as follows: From the apex A to the point B is a curved portion consisting of the arc of a circle struck from the center a. From the point B to the point C is a straight portion, and from the point C to the point D is a curved portion, consisting of the arc of a circle struck from the center 17. Between the points D the surface is a curved portion consisting of the arc of a circle struck from the center of the opposite roll.

The teeth, as shown, cut the cane in elliptical sections, thus exposing greater surface for the extraction of the juice, and the peculiar construction of the teeth serves to hold the cane and subject it to a rubbing pressure between the sides of the teeth, so that a much larger percentage of juice is secured from the crusher than with teeth of ordinary construction.

A double chute is provided for the crusher, consisting of an upper part 28 and a lower part 30. The upper part 28 extends up to the lower crushing-roll 8 and receives the crushed cane from the crushing-rolls for delivery to the press-rolls 29. The lower part 30 extends underneath the crushing rolls, where that portion of it which may consist of a drip-pan 31 receives the juice expressed by the crushing-rolls from the cane during the crushing operation. The cane and the juice expressed by the crushing-rolls are thus separated before the cane reaches the press-rolls 29. The press-rolls 29 for further expressing the juice from the cane are suitably mounted on standards 32.-

In Figs. 4 and 5 I have shown a modified form of means for securing the toothed collars in position on the roll-shaft, which means consist of the ring 26, through which pass pins 33, whose outer ends are threaded and provided with nuts, the inner ends of said pins being provided with lateral projections 34, the pin and lateral projections being seated in a cut-out or recessed portion 35 of the periphery of the roll-shaft. In this instance it will of course be noticed that the ring 26 need not be shrunk on the roll-shaft, the series of toothed collars being held securely in position by the ring being screwed against them by means of the pins 33.

Any desired means of driving the machine may be availed of, and I have shown for this purpose in the drawings a gear-wheel 36 on the shaft of the roll 7, the other end of said shaft being provided with a sprocket-wheel meshing with a chain 37, which passes over another sprocket-wheel to drive the traveling apron, which feeds the material operated upon down the chute.

What is claimed as new is 1. A roll for crushing cane, or similar material, consisting of a shaft having a series of toothed collars each of which is fastened to the shaft and provided on one end with a groove and on the opposite end with a tongue, said tongue being made of greater diameter than the groove into which it is pressed,whereby contiguous collars engage with each other and the expressed juices are prevented from reaching the shaft, substantially as specified.

2. A roll for crushing cane, having a series of teeth, each of which consists of a comparatively sharp apex portion having a convex or outwardly-curved surface on each side of the apex, and an inwardly-curved portion on each side of the base of the tooth, the spaces between the teeth being wider than the teeth, substantially as specified.

3. A roll for crushing cane, having a series of teeth, each of which consists of a comparatively sharp apex portion having a convex or outwardly-curved surface on each side of the apex, a concave or inwardly-curved portion on each side of the base of the tooth, and a convex or outwardly-curved portion intermediate the concave portions of the contiguous teeth, the spaces between the teeth being wider than the teeth, substantially as specified.

4. A roll for crushing cane, having a series of teeth narrower than the spaces between them and formed with a comparatively sharp apex portion, a convex or outwardly-curved surface on each side of the apex, a concave or inwardly-curved portion on each side near the base of the tooth, a straight portion on each side of the tooth intermediate the concave and convex portions, and a convex or outwardly-curved portion intermediate the concave portions of contiguous teeth, whereby the cane is caught between the teeth within the space thus formed and there held while subjected to a rubbing pressure before passing out of the crusher, as substantially specified.

5. In a machine for crushing cane or similar material, the combination of crushing-rolls and a double chute, one portion of which delivers crushed cane, the other portion being separated from the cane-chute, and consisting of a drip-pan placed beneath the crushing-rolls, and an inclined part for delivering the expressed juices, substantially as specified.

6. In a machine for crushing cane or similar material, the combination of crushing-rolls and a double chute consisting of an upper part which extends up to the crushing-rolls and a lower part which extends underneath the crushing-rolls, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALFONSO PESANT.

Witnesses:

ERNEST HOPKINSON, W. LAIRD GOLDSBOROUGH.

IOO 

